Telegraph-transmitter.



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E. H. PIERSEN.- TELEGRAPH TRANSMITTER.

E. H. Pl'ERsfEN. TELEGRAPH TRANSMITTER. APPLICATVION FILED DECQIT, 1912.

Patented im. 19, 1915.

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E. H. PIERSE'N.

TELEGRAPH TRANSMITTER.

APPLICATION man Dsc. 17, 1912.

Patented 001.1111915.

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E. H. PJERSEN. TEVLEGRAPH TRANSMITTER. l APPucATToN rTLT-:D nec. 1T,1912. y 19157,@4 Patented Oct. 19, ma.

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Patented oct. 19, 1.915a

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UNITED STATES PArENToEEicE.

EDWIN H. PIEEsEN, 0E Tommi, KANSAS, b.essicrr'ioa 'ro 'THE PIEESENrTELEGEAEH I TRANSMITTER COMPANY, OF TOPEKA. KANSAS, A CORPORATION 'OFKANSAS.

TELEGRAPH-TRANSMITTER.

v Application led December, 17, 1912. Serial No. 737,239.

T allwkom it may concern.' f v Be it known that I, Finwiiv H.'IIERSEN,

a citizen of theA United States. residing-"at- '10 in the art to whichit appertains to make and use the same,.reference being had to theaccompanying' drawing/s7 and to the letters and figures of referencemarked thereon, which form a part of this specification.

.1.5 My linvention relates to telegraph transl mitters, and moreparticularly `to .one ot' ;.-.-that class* utilizing a keyboard forreleasing character formingmembers to the action of a motor and intooperative relation wit-rima 2O circuit making and breaking mechanism,whereby impulses corresponding with those produced by an ordinarytelegraph key are created. I

-It is the principal object of the present invention to produce amachine of this type "wherein the characters to be sentmay ac-` cumulateand connect with them'otor and circuit breaker in proper sequence,irrespective of the speed or regularity of opera- 3Q tion of thekeyboard, thereby obviating confusion of the symbols or vthe necessityfor special training of an operator. In accomplishing this object, Iprovide an accumu-.

lating cylinder having aA plurality of trip members for each charactersendable by the machine, and a single character member for each set oftrips. All of the character members are mounted in a frame, which isindependent of, but adapted 'for actuation from 40 the drum drivingmechanism, the connections being such that radial "tension from saiddriving mechanism will vtend to move the drum and frame in oppositedirections, with the result that while the character 15 frame is alwaysadvanced Withthe accumulating cylinder it always returns to itsinitialposition, vand during its return travel wipes the active trips Vin thedrum .to release the proper character members.

50 It is also anobject of the invention to provide improved details ofstructure for accomplishing the general object above mentioned. thepreferred forms of which are Specification of Letters Patent.

` justing device.

Patented oct. 19', 1915.4

wherein Figure I is a side elevation of a trans- Illustrated in theaccompanying drawings,

mitter constructed according to my invention, the case being in section.FigfI'I is an elevation of the opposite side of the same.

Fig. III is a longitudinal -section of the Fig. IV isa transversesection of Fig.

same.-V the same on the line IV-IV, Fig. 1.

V is a rear perspective view ofthe trame` i and keyboard' levers. Fig.VI is a side elevation of the character'collecting and forming device.'Fig'VII is a front view of sam'e. F ig. VIII is an elevation of theopp'osite .slide of the device;` Fig. IX is a rear view ofthe device.Fig. X is a section on the line X'X, Fig. II, showing the visible,

audible and touch indicators and keyboard lock. Fig. XIpis a.perspective' view of a device' for' uniformally varying the touch of thekeyboard. Fig. XII is a perspective view ofthe keyboard indicator fingerand carriage. Fig. XIII is a1 perspective View of a portion of one ofthe key levers, illustrating its method of mounting.' is va perspectiveview ory one side of the spacer bar lever showing its mountingfandtorsion rod. Fig. XV is an inverted perspective view of the key leverspring ad- Fig. XVI is` a'detail vview of one; of' the character formingdisks and mounting, a part of the auxiliary mechanisin and a portion ofthe accumulating portion of the lower part ot'` the character`Aformingfand collectingjdevice, viewed from Fig. XX is a perspectiveview the inside.

Fig. XXI is of one of the character disks.

linglthe disk. F ig.v XXII is a perspectiye `view of a gear foroperating the character i 100.

forming and-collectingdevice. Fig XXIII is -a similar view of theopposite side of said Fig. XXIV is a detail view of the gear.

the governor' setting mechanism. Fig.

XXVI is a perspective view of the speed Fig. XIV

` a similar view of the stop' lever for control- 4 governor and itssettingv mechanism. Fig. XXV is a detailiv-iew of a cam fpr actuating jindicator. Fig. XXVII is a sectional view ofV the indicator on the lineXXVII- XXVII, Fig. XXVI. Fig. XXVIII is a detail-view of the indicatorquadrant. Fig.

-XXIX is a detail view -ofthe indicator if spring. Fig.l XXX is anoutside perspective v iew of the contact breaker. Fig. XXXI is an insideperspective view of saine. Fig. XXXII is a perspective view of thecollector rings and the frame wiper, forming part ofthe contact breaker.Fig.

XXXIII is a section on the line XXXIII XXXIII, Fig. XXXII, showiiig theinsulation for the collector rings. 'F-ig. XXXIV is a. detail.perspective view of oneof the dogs in the accumulating drum. Fig. XXXVis a similar view v'of the opposite Y side of same. Fig. XXXVI is adetail pei spective view of t-he'spiing latch for the above named dog.Fig. X-XXVII is a sectional View. 'on the line XXXVII- XXXVII, Fig.XXXVIILshowing the relation vbetween-the spring latch and dog.

Fig. XXXVIIIA is a side elevation of one of the dogs and its key lever,illust-rating 'the action of those parts. Fig. XXXIX is a perspectiveview of the latch board for insuring single actuation o f the lkeylevers'. Fig. XIiis a perspective view of 'a hand 'key used inconnection with the machine. Fig. TXLA is a detail perspective of thekey lock. Fig. XLI is a side elevation of a front part "of the machinecase, showing the mounting of the hand key. Fig. XLII ista verticalsection of the key and its mounting, on the line .XLII-XLII, Fig. XLI.Fig. XLIII fis a perspective view of the crank cup and pawl for windingthe spring motor. Fig.

XLIV is a vertical section on the line 40 XLIV-XLIV, Fig. XLV. .Fig` XLVis a sectional view through the casing, showing the ratchet crank andwinding pinion. Fig. XLVIisa sectional view ofla spring latch lforsecuring the cover, to the frame. Fig.

XLVII isa perspective view of one of the indicator sheaves. Fig. XLVIIIi-s a detail perspective of a portion of the drum ratchet andpawlReferring more in detail to the parts:-

1 designates a .frame wherein the accumu lating drum, character frame,keyboard, and

other operative parts of the machine, are mounted, being preferablyprov'ided with rubber feet'2 for cushioning its support and deade'ningsound of the machine, and with rearwardly extending lugs 3 to which theears 4 of a cover 5V are pivotallymounted. The cover 5 covers the framel andthe parts contained therein, and has forwardly eX- tending sideportions G adapted for inclosing the' keyboard, the inclined top beingpreferably provided with a'copy holder T. The rear of the cover isprovided with suit- 'able apertures for receiving the binder posts 55 89, the former of which is grounded onthe the. cover is to be tippedback.

ring 4Q having teeth 4l onits periphery, of

case and the latter inslilated therefrom in order to complete a groundedcircuit through the parts ofthe machine, asv will presently 'bedescribed.A

In order to hold'the cover in place, I pro- 70 vide same with latches 10(Fig. XLVI) comprising a cup 1l which is threaded -into vthe cover frominside and has an aperture 12 through which a plunger 13 is slidablyprojected, the inner end of the plunger being adapted to seat within asocket 14 in the 'stationary frame l and normally held in its holdingposition by a coil spring'l which bears against the base of the cuplland against a shoulder 1G on the plunger, 8() the outer end of theplunger being provided with a. knob 17 by which it may be drawnoutwardly againstethe tension of the spring to break the connection withthe frame when 1 85 Journaled in hubs 18 and 19 (Fig. IV), on frame 1.'are tubular gudgeons 20 and 21, which project axially from thecharacter member frame 22' (Figs. VI and IX) com- 4 prising'skeleton endmembers 23 and 24 on 90 which the gudgeons are fixed and tie rods 25yand 26 'and bars 27 and 28 which unitev the end members to -form a.lrigid frame. The bar 27 is seated within offsets in the rear .ofthe endmembers 23 and 2l and\provi ded 95 with slots 29.

Pivotally mounted. on ashaft 30, which is fixed in the end members and24, and

extending through the lower portion of the bar. 2 7, are bell cranklevers31 4corresponding in number with' the character members comprisedby lthe machine.-

The upper arm of each bell crank leverv extends upwardly and forwardlypast theI -facing hook 34. The lower arm of the lever is pointed andslidably mounted in slots ,35 (Fig. XIX) in the plate v36 of a slide 37,the ends of which project through apertures in the end members 23 and24.

Each character disk 32. is revolubly mounted within the pocket in itsbellcrank lever by means of a pin 38, and comprises a gear wheel 39(Fig. XX), the teeth of which are preferably pointed in order to fitreadil into a driving pinion by which it is actuate On the side of thegein-.wheel is a symbol such form and sequence ,as to represent thesymbol of a telegraph code which that particularmember isadapted to`send, it being understood that each of the character mem'- bers isadapted, by being provided 'with 1,30

f for each set of character teeth, arranged to stop or set the disk inproper relation to its releasing device, and the gear Wheel 89 has aplate 43 fixed on its face within the ring` 40 and provided with notches44 corresponding in number and arrangement with the points 42, andadapted forcoperation with said points to seit the character member.

vcrank 31 land the Thebar 2S at the front of the frame 22 isarranged'beneath ears 15 on the frame and provided with' slots 46.

pivotally mounted on a shaft 4:7, carrried by the ears 4.5, and the bar'28, are the latch levers 49 which correspond in number and arrangementwith each of the bell crank levers and character members. Each lever 49has an arm 50 yieldingly held againstthe shoulder'33 of the bell cranklever by a spring 51, the one end of which is carried by the hook vother by a hook 52 at the point of the lever @19; the second arm of the'latch lever beingl projected past the side of the character member andprovided ivith anin'turned lip 54 (Fig. XXI) vadapted for engagementwith the points 42v and the.

notched plate 43 on the face of the gearv vvheel forming part of thecharacter member. As the'contacting area of the latch and bell leversis'small, I provide aA guide'for holding bothA parts 1n position,comprising a plate 5G at vthe front of the frame having a` Slot 57 foreach pair of levers and within which said levers may operate freely 'but1n proper relation.

Revolubly mounted in and extending tween the end members. 23 andely atthe topl of the frame 22'is a shaft-58 having a gear ivheelt) rigidlytixedto one of .its ends and meshing with a end Revolubly mounted onshaft 58 isa sleeve GQ, the ends of' which carry bell crank, hangersG3't he.lo\ver arms of `which project` over and'adjacent tothe planeofthe character members and carry an elongated revoluble pinion 6%;theupper ends of the'.

ring has a point 42 34 on theA end of the bell gear wheel 60v revolublymounted on` a stub shaft 61 on the frame.

pinion out ofA enn in' idle position, a spring 65 being connected Withthe loivcr end of one of the levers and v the u pperends of the hangersuagainst the tic rod to `insure proper meshing of the character gearteeth with the pinion.

Rigidly connected with the gear Wheel (3G ivhich meshes with vafgearivheel 67 on the shaft 5S, the gear Whcrl 67 Iin turn meshing ivith asmall-gear Wheel 70 rigid on the large gear wheel 71 xvhich is revolublymounted in point bearings 7'2 and T3 carried b v the frame 2l, andan'arml 71 depending from thc. The gear wheel 71 meshes with a pinion 75forming part of the governorl shaft 79, which is 'revolubly mounted inpoint bearings TIC-77, on the side member 24, and an arm TS alsodepending, from the tie rod '25, so that all of the gearing carried bythe character trameiis controllable by a governor which is mounted onlthe governor shaft T9.

The governor which I show, and prefer to use. comprises Wings S0 whichare rigidly secured on the shaft 79 and *to which the acter members andretain 4weights 81 ,are pivotally connected, the

weights in turn being yieldin'gly held .in collapsed relationl bysprings .82, ard provifled with rollers 83 which are adapted'to bearagainst `disk18i`that is slidably mounted on shaftl, when the governorWeights are expanded to movethe diskv along said shaft'. l

Slidablymounted in ar-m 78, and in an arm 85, also depending from thetie rod 25, is a rod 8G having va leather, or like friction inducingtipv S7 disk 8 -1 and provided with a spring v88 which bears against thearm 85 and against a col'- lar 89 on said rod to yieldingly tension sametoward the governor disk, the' spring being sufficiently strong to holdthe governor against the tension of the spring motor by which the devicefis actuated, vand lock the` machine'.

'vTo release'the governor, I provide a lever 90, which is pivotallymounted on the end member '23 by a pin 95, one arm of which has a yoke91 straddling the rod 'S6 and adapted to bear against a collar. 92slidably mounted on said rod and bearing against a cushioning springv 93which surrounds the rod and bears against a fixed head 94: on the outerend thereof, the lower end of said lever being extended past the innerend of the gudgeon 20 and adapted forengagement by a pin 9G Which'isslidably mounted therein. ,Thev end of the gudgeontermi# nates adjacentthe cover for engagement from the exterior ofthe machineavhereby thespace between the end of the stop 4rod 86 and thegovernor disk may beregulated pinion (Si is a.

tie rod Q5 respectively.

5 and 'is adaptedy by aA setting cam loperable l to determine the speedat which the char'- acters may be sent, as will presently be more vfullydescribed; it being apparent, however,

that by extendingv the pin 96 through the gudgeon, on which both the`character frameand accumulating cylinder are mounted, that the governorcontained within and at one side of the center of the cylinder may becontrolled by the apparatus on the eX- terior of the casing, so that itis unnecessary to uncover the working parts, o1" have access to thecharacter mechanism, in order to -l secure such regulation.

In order to limit the speed of the governor, I also provide the end ofthe character framewithaJset screw 9S, the end of which is adapted forengagement by the head of the rod 8G when the latter is moved out--` Iwardly, to limit the space between the end of the rod and the governordisk and thereby limit the speed of the machine, it'being apparent thatthe screw will positively stop the travel of the rod when engagethereby, and that should an operator endeavor to increase the speed bymanipulation of the first mentioned regulator, the upper arm of the ylever 90 will simply compress the spring 93 f on rod 8G without shiftingthe rod past the point iixed by the set screw.

The circuit' closer which I' prefer to use comprises a brush bar 99(Figs. XXX,

XXXI, and XXXII) which is pivotally mounted in point bearings 100 intheend i members 23 and 24 and has a longitudinal groove within which thesplit brush 101 is mounted, the brush comprising flexible leaves,eachhaving a down-turned free end adaptedl for engagement with the teeth onone of the character disks; the'bar having al lip 102 for leach brushleaf, through which a set screw 103 is`projected to contact the leaf andadjust same to secure the proper eooperation with the character member.

Fixed to one end lof bar 99 is a lever 104 having la lower arm'105provided with a spring 10G, the rearlend of -which is connected with thehook 107 on tue inner end of a` 'pin 108 which extends through the cross'bar 27 and has'a thumb nut 109 threaded thereonV to adjust the tensionof the spring and control the touchlof the circuit closer.

' The upper arm 110 of lever 101 has a laterally turned tip providedwith a depending boss 111, of rubber, or other insulating material,which overlies the horizontal'arm 112 of a rocker 112, which ispivotally character frame 23, the horizontal'member of the rockerbeingprovided with Ya spring 119 which is hung from a screw 120 on anupstanding arm 121 of the U-'bracket 115 and is adjustable by a thumbnut 122 to vary the tension of the rocker toward its Contact member.

Extending laterally from the U-bracket 115 are ears 123 which carry apin 124, rand pivotally mounted on said pin is an arm 12.5 which isyieldingly tensioned outwardly by a spring 126 and carries a brush 127which is adapted to wipe the innerl ring 128 of a current collectorwhich is fixed to fiber or like insulating washers 129 carried by thespider webs of the acculnulating cylinder,

and will presently be more fully described.

It is apparent that when the character members are released and actuatedby the elongated pinion to rock the brushvbar, the lever 104 will riseand tall from the rocker 112, making and breaking contact between therocker and the point 117 on the character frame, so that with a circuitwire grounded on theframe an electric circuit is closed and openedtherethrough, through the rocker bracket and brush to the vcollectorring, as

the rocker contacts and separates from the point, the insulated mountingfor the bracket preventing grounding of the other circuit wire whichleads to the collector ring 128.

The accumulating drum, within which the character frame is contained,has setting devices pivotallymounted in its circumference and adaptedfor projection linto the interior, as will .presently be described indetail'. Each of the setting devices, however, is adapted, when rockedinto active position, for engaging the lower end of the bell crank leverwhich carries its particular character vmember so that the latch 4:9willcatch the upper end of the lever and hold same until the -characterhas been completed. In order to positively lock the bell crank lever andsetting devices together until the character has been completed, Iprovide a latch mech- -anism comprising a latch bar 130 which extendsentirely across the character frame and is pivotally mounted on a rod131 carried. by bearings 132 'that project rearwardly from the slide 37and have upwardly directed ears 133 provided with a concaved front face(Fig. XIX) ,1, the bar 130 being provided with a depending web 134having slots 135; the tongues of the plate being in front of the slottedportions of the slide37, so that under ordinary conditions the lower'ends of the `bell crank levers will lie directly back of the tongues.'

Iivotally mounted on the ends 23'and 24- of the character frame arehangers 136 which are connected by a cross member 137 that isadapted tooverlie the lower ends of all of the bell crank levers 31, each -of thehangers *havingY an inturned stud 138,1ying back of the adjacent ear13.3 of the cross edgesof said. ears and tip the`\cross bar130'z,

downwardly so that the proper tongues thereon will engage th'etrip onthe accumulating drum which has rocked the bell crank lever throughwhich. the hangers were lifted.

The cross bar 130 is normally, yieldingly held in elevated positionv by'a sp'ring130 vwhich is connected with the bar and with a pin 139 on theframe end 23, so thatthe locking action just tension of the spring andwill be overcome,

`io return the parts to initial position, as soon as the positivepressure on the cross member is removed.

The object in having theguide member 37 slidable in the frame is toprovide for. shifting the trip ends of the bell crank levers out of thepath of the setting devices so that the drum may be moved backwardlywhen it is desired to eliminate a message or to repeat all or part of amessage; it' bjeiiig apparent that if the setting devices lin the'drumwere left in their `active position, and the character frame returiiedto thev position `from which it started to contact the trips, and wereagain moved forwardly, that the character members, theretofore actuated,would repeat in the same oi'der. In order to-accomplish this result,Iprovide the slotted plate 134, the tongues ofwhich are adapted toengage the bell lever trips, (when the plate is tipped) the mountingofthe bell crank levers beingsuificiently loose to allow the levers tovshift when the slide is moved rlaterally, so that vthey will avoid theactive `setting devices. Inasmuch, however, as it is seldom necessary torepeat 'a message, I provide for normally retaining the slide in posi-.istV

tion by providing .same with a spring 140 which is connected with thebody of the slide 37 and with a pin 141 on the frame end 24, theadjacent end. of the slide having a'boss 142 adapted for engaging theinner face of the frame end to limit the outward movement thereof under.tension of the spring and retain the slotted parts in position forperforming their functions,J

vTo move the slide against the? tension of its spring, I provide a lever,143 which is pivotally mounted at 144 on'side members 24 (Fig. XXIII)and between'ears 145 on a disk 145,'which is revolubly. iii'ounted in acollar 146 on the gear wheel 147 said gear wheel being carried by aVsleeve' on the gudgeoii 21; said sleeve being held to the gear wheel bythe collar 146, so that it is adapted to move laterally when the gearwheel is moved, as will presently be more fully described.

The accumulating drum, within which the described is against the j`having an aperture character frame is mounted, comprises spiders 150and 151, which are y Vrrevolubly mounted on the gudgeon 26 andthe sleeve148.0n the rgudgeon 21,'and Icarry-the drum 152,'whicli is preferablyformed in two parts, I so that it may be separated to afford access toits interior, and has a .tongue and groove joint 153 (Fig. II). Aratchet`1'55 (Figs.

IV and `XLVIII) which extendscontinuously around .the drum at one end,is adapted* for engagement by .an escap'e'me'nt 156 1 (Figs. I and V)whereby tension frointhe motor, tending to revolve the drum iscjontrolled through the key, levers, presently described. .n

series of slots 157 (Fig. XXXVIII)-for 8o i The drum 152 contains acircumferential each character which the machine is adapted to send,theslots in the diiferent series-loeing arranged in transversealinement.- and eacl'islot containing apinv 158 upon which a. tripsetting dog 159 is pivotally mounted,

the slots and trip dogs in the various series being arranged inalinement with the normal positions ofthe bell cra-nkl characterleversand latch tongues in order to properly cooperate therewith, and Vso thata singlepin may extend through all of the slots ina transverse row.

Each of the setting dogs comprises a bod portion 160 (Figs.XXXIV--XXXVIII 161 just back of its center. of mass, an upwardlyandforwardly projecting finger 162 which is adapted for engaging androcking a character lever, \a`

laterally turned ear 164 which acts as a stop to Ilimit thesettingtravel of the dogand is adapted for engagement by the rear endo'f the proper key lever' to rockthe dog to its setting position, and abackwardly and downwardly'projecting finger A163 which is ing the nose166 of a spring 167, which is adapted for .engagement by a wiper to rejOne face also mounted onA the pin 158 within the 'drum slot, and has aleaf 168 provided with ears m9 which overlie the inner vand outer facesof the drinn to hold the spring rigidly in l osition. i

Fixed to the non-conductive washers-129 on the webs of the drum spider150, by pins' current collectingring 171 170, is an outer and XXXIII),and mount- (Figs. XXXII ed in a non-conductive bushing 172,v on a fbracket 173, which is pivotally mounted on fthe main frame 1, andyielding tensioned inwardly by a spring 174 is a brush 175 i which isconnected with vthe insulated binding post 9 by a wire 17 6.'

- -On thev opposite end o-f the sleeve '14'8 which carries the gearwheel 147 and disk' 145, wherebyl the repeat slide lever is'actii'`ated, is a gear wheel 177 which meshes with ipe fa. gear' wheel 178 on apin 179 slidably 'mounted in a bearing 180 in cover 5 and provided witha knob 181 at itsouter end,

the gear wheel 178 having Hanges 182 on its trips out of line with thetrip dogs on the ,accumulating drum, so with the parts in this Lposition, rotation of the knob will rotate the character frame so thatthe latter may be moved back to a starting position 'without 2o changingthe position of the accumulating drum, andA so that the driving.connection with the character frame is restablislied,.

the contacts -of the character levers with the setting dogs will berepeated, and the character members again operated to repeat a message.

.One-half' of the lateralv surface of gear wheel' 147 meshes withtliegear 60, which is the first in train leading to the governor. and -tothe pinion 64, andthe other half..

meshes with an intermediate gear 183. (Figs.

I and IV), which is revolubly mounted on I a stub shaft 184 on thespider 151. The gear wheel 18S meshes withjthegearwheel'185 Y rigidlymounted on a shaft 186 revoluble in one .of the arms of the spider, theopposite end of said vshaft having a gear wheel 187 fixed'thereto andmeshing with one-half the lateral surface of a large gear wheel 188 40revolubly mounted on a collar 189 on the bearing 19 of the main frame 1.The other vhalf of the lateral surface of gear'188 meshes with anintermediate gear 1.98, on a stub shaft 194, onthe mainframe, which inturn meshes with a large gear wheel 192, revolubly mounted on the stubshaft 195, also carried by the main frame and provided witha small gearwheel 196 which is engaged by a large gear wheel 197 on .a motor 1-98whichl may be of any suitable construction, but is preferablycarriedbybearings 199 on the main frame.

The motor (which is 'preferably of a spring type) has a gear wheel 200at the end ioppos'ite the wheel 197 (Fig. II), which meshes with a gear201 on a shaft 202 (Fig.

XLV) which is revolubly mounted in' a bearing 203 on the case 5. l, y

Fixedon the projecting end of shaft 202 is a ratchet wheel 204, andrevolubly mounted on said shaft is a crank 205 having acase 206inclosing the ratchet wheel and'ada ted' for revoluble movement ina`gr0ove 20 in the end of the bearing; the case and crank, C5 being heldto the shaft by a nut 208.

In the head of the crankr-ni is a -pbc'ket 209, and pivotall)mountedinssaid pocket is a pawl 210, which is -yieldingly held inengagement with the ratchet wheel 204 by a I spring 211, so that thecrank is operative in but one direction.

It is apparent, thereforethat when th-e motor is wound up by the crank,it will tend to revolve the gear wheels 197 196, 192,

193 and 188, the latter being the last in train 75 from the motor to theaccumulating drum,

vand that tension from the wheel 188 is transferred to the wheel 187,thereby exerting a radial force on 4the, drum in the direction of thearrovi7 (Fig. I by virtue of a resistance 80 f .lis controlledthereby,s'o that all of thecharacter mechanism, the gear 183, andtransmission to and including thev gear\ 187, is locked by thegovernor,--jvhep the latter is in locking position. It is apparent,however, tha`t as Vthe character lmechanism andthe accumulating drum areboth revolubly mounted on the gudgeons, that tension fi'om the motorwill tend to revolve the drum in the direction ofthe arrow (Fig. I), and.that when the character parts are rigidly connected with the drum, allof the parts may be revolved backwardly, as indicated, irrespective ofthe locking or unlocking ofthe governor. It is also apparent that ifwhenthe gear'wheel 147 is moved laterally to shi-ft the repeat mechanism, itshould entirely leave its contact with the gear wheel 6 0, withwliichlialf of vits surface normally meshes, thatthe connection with thergovernor would be broken and' the motor would be free to race. In orderto obviate such action, I provide the outer face of the gear wheel 147with a clutch face 212, which isv adapted to mesh with a similar face213 in the.

adjacent spider 151 when the repeat mechanism is shifted, and therebylock the motor with the drum until the repeat mechanism, is returned toits original position, the gear teeth on the gear wheelsbeing'preferably beveled to facilitate their meshing when the gea-r 147is returned to active position.

It is apparent that when. the gear wheel 147 is shifted out of mesh withthe gear wheel 60 the character member frame may be revolved withoutactuating the governor and the intermediate gearing,` thereby relievingthe operation of the tension required rfor operating such mechanism, and

